TWI665144B - Structure of a silo feeder - Google Patents

Abstract

A structure of a feeding trough device is a device for preventing material from being blocked. In the feeding system, a motor is used to drive a feeding part to rotate in the feeding trough, and mechanical blocking is used to destroy the blocking phenomenon of the material, thereby achieving The purpose of preventing material jamming. The feeding tank of this patent is connected to a screw feeder for conveying materials. The screw feeder is connected to a second feeding tank, and the second feeding tank is connected to a pipeline. The pipeline is provided with a first sealing valve and A second sealing valve is used to keep the pipeline sealed to prevent material contamination. Finally, the pipeline is connected to a second screw feeder. The second screw feeder then feeds the material into the furnace to complete the entire conveying line to achieve Contribute to the purpose of industrial production.

Description

Structure of the feed tank device

The present invention relates to the structure of a feed storage tank device, and more particularly, to a device for avoiding jamming when feeding materials.

In the past, powdery materials often jam when discharging. This situation is because the adhesion and friction of the material itself produce a supporting force in a layer in the powder that is balanced with the pressure of the powder above, just like an arch bridge will The weight itself and the load imposed on it are transferred horizontally to the piers at both ends. When the small units are pushed against each other, the strength of the bridge itself is also increased, which means that even if the support force under these powder layers is zero, the powder can maintain static balance, which will cause the exit of the storage bin or the interior of the storage bin to be blocked. The storage bin cannot be discharged, and this phenomenon is called a bridge phenomenon.

The first cause of the bridging phenomenon is caused by friction and pinch of the material particles, which usually occurs when the shape of the discharged particles is relatively irregular and the outlet pore diameter is too small to reach a certain multiple of the particle diameter. When the particles flow in the storage bin, the protruding angles of the materials rub against each other, which causes arched accumulation at the exit to completely stop the flow of the material. It is common in particles with poor sphericity such as gravel, coal, and coke. The solution is usually to increase the size of the outlet of the storage tank, or to apply a strong impact at the outlet, such as using a vibrator, gas explosion device or manual knocking.

The second reason is the bridging produced when the discharged material is a powder with strong viscosity. The viscosity is a kind of flow resistance inside the viscous liquid, and may be considered as the friction of the fluid itself, usually the viscous force. Mainly from the mutual attraction between molecules, this material may cause serious bridging; powder may also increase moisture content due to fine particles absorbing moisture in the air, or the storage time is too long, and the bottom particles are pressed by the weight of the powder above Dense, close arched accumulation at the funnel trough exit. This mainly occurs during the transportation of fine powder such as flour, pulverized coal, cement, medicinal powder, limestone, etc. Therefore, the storage environment, storage time, and powder characteristics of the storage tank must be considered to improve the design of the storage bin.

The third reason is the moisture content. The higher the moisture content, the easier it is to form a serious bridge. The lower the moisture content, the less difficult it is to form a bridge. The material will condense water on the tank wall or powdery materials due to the natural convection in the tank. The surface between them makes the powdery material easy to agglomerate and cause bridging. This phenomenon often occurs in the part where the diameter of the tank is reduced. The solution needs to consider whether the tank design makes the water content in the tank too high.

The fourth reason is the poor design of the tank. One is that the angle of the discharge hopper is too small (less than 58 °), so that the material can be supported, resulting in a continuous phenomenon that causes the material to pile up and form a bridge. The second is the length of the discharge diameter. Too small, it is easy to jam the material, so you need to consider whether the tank design is greater than the minimum angle and whether the diameter of the tank is large enough. Do not make the reduction of the tank diameter too small to cause material accumulation.

The bridging phenomenon is often accompanied by another phenomenon, which is called rathole. The rathole is because when the powdery material is discharged, it is often discharged through through. The powder is discharged from the channel above the orifice, so that the wall side forms a stagnation zone. . If it is a powder with high viscosity as the second reason, the powders in the stagnation area will stick to each other and it is not easy to collapse to the central channel. Therefore, the material accumulation phenomenon as described in the fourth reason often occurs above the discharge port.

Bridging and its accompanying rat hole phenomenon are the most commonly encountered problems when discharging in storage tanks, causing unstable or even complete stopping of powder supply, which affects operating procedures and causes huge losses in the industry. The bridging phenomenon generally exists in powder and granular products such as agriculture, fertilizers, cement mining, pharmaceuticals, power plants, powder metallurgy and other industries. Most industries have encountered serious bridging problems, so the domestic industry is eager to solve this problem. Although there are several solutions currently used in China, most of them fail to meet the practical and economic requirements. The most economical and effective bridge-breaking method must be explored together to establish a cost-effective bridge-breaking operation mode.

The purpose of the present invention is to provide a structure of a feeding trough device, which is a structure to avoid bridging of materials. In a feeding system, a feeding piece is used to rotate in a feeding trough, and the bridging phenomenon of materials is destroyed by mechanical stirring To achieve the purpose of preventing material jamming.

The purpose of the present invention is to provide a structure of a feeding trough device, which is a conveying line connected to two feeding troughs, two spiral feeders, a pipeline and two sealing valves, which can prevent material Of pollution.

In order to achieve the aforementioned purposes and effects, the present invention discloses a structure of a feeding trough device, which includes: a first feeding trough having a first opening underneath; and a feeding member including A plurality of feeding pieces are arranged at the end of a rod, and the feeding element is arranged inside the first feeding slot.

In an embodiment of the present invention, a diameter of the first feeding tank is reduced from top to bottom.

In one embodiment of the present invention, the first feeding tank includes a body and a feeding body, the feeding body is disposed below the body, and the diameter of the feeding body is reduced from top to bottom.

In one embodiment of the present invention, the first feeding tank includes a body and a feeding body, the feeding body is disposed below the body, and a diameter of the feeding body is smaller than a size of the body.

In one embodiment of the present invention, the feeding member is disposed inside the feeding body.

In an embodiment of the present invention, the feeding member is disposed at a connection between the feeding body and the body.

In one embodiment of the present invention, the feeding member is connected to a motor to drive the feeding member to rotate.

In one embodiment of the present invention, the feeding pieces may be a threaded feeding piece.

In an embodiment of the present invention, it further comprises: a first screw feeder, one end of the first screw feeder is connected to the first opening and connected to the first feeding tank; a second feeding tank, A side of the second feeding tank is connected to the other end of the first screw feeder, and a second opening is provided below the second feeding tank. A pipeline is connected to the second opening and is connected to the second feeding tank. The upper end of the pipeline is provided with a first sealing valve, and the lower end of the pipeline is provided with a second sealing valve; and a second screw feeder, one end of the second screw feeder is connected to the pipeline, and the first The downstream end of the two screw feeders is connected to a furnace body.

In order to make the reviewing committee members have a better understanding and understanding of the features of the present invention and the effects achieved, I would like to provide examples and cooperative descriptions, as described below:

The invention provides a structure of a feeding trough device, which uses a feeding piece to rotate in the feeding trough and destroys the bridging phenomenon caused by materials by mechanical stirring, and connects two feeding troughs, two spiral feeders, and The pipeline and the conveying device of the two sealed valves can prevent the material from being contaminated. The present invention can effectively improve various shortcomings of conventional use, thereby making the production of the present invention more economical, more practical, and more in line with the needs of users.

Please refer to FIG. 1 to FIG. 2 together. FIG. 1 is a schematic diagram of the combined structure of the present invention, and FIG. 2 is a schematic diagram of the first embodiment. As shown in the figure, a feeding tank device 100 can avoid card jamming. The structure of the material includes a first feeding tank 10, a feeding part 12, a first screw feeder 20, a second feeding tank 30, a pipeline 40, and a second screw feeder 50. And a furnace body 60. The first feeding tank 10 and the second feeding tank 30 can pour materials and temporarily store the materials in the tank. The feeding part The first screw feeder 20 and the second screw feeder 50 have a structure in which materials are conveyed by spiral blades and a rotating shaft. The pipeline 40 includes a first sealing valve 41 and a second sealing valve 42, which can ensure that the material is sealed and prevent the material from being contaminated.

Continuing the above, the shape of the first feeding tank 10 is as shown in FIG. 2. A body 10 a has a diameter D1, and the body 10 a is a long barrel. The shape may be circular or rectangular. Should be limited by it, a feed body 10b is disposed below the body 10a, and the diameter D2 of the feed body 10b is reduced from the top to the diameter D3 to form a diameter reduction portion 14 to make the diameter D3 Less than diameter D1 to guide the material to slide down. Referring to FIG. 1, a feeding member 12 is provided inside the first feeding tank 10 and a motor 11 drives the feeding member 12 to rotate. The feeding member 12 includes a rod member 12a, and a plurality of feeding members are provided at the end of the feeding member 12. The material sheet 12b is disposed at the reduced diameter portion 14 of the first feeding tank 10 and is located inside one of the first openings 13 below. Refer to FIG. 3, which is a schematic diagram of other shapes of the first feeding tank body. As shown in the figure, the first feeding tank 10 may also have a conical structure with a diameter D1 reduced from top to bottom and a diameter D3. Refer also to FIG. 4, which is a schematic view of the thread of the feeding piece of the first embodiment. As shown in the figure, a threaded feeding piece 12 c may also be provided at the end of the rod 12 a.

Continuing from the above, the first screw feeder 20 is disposed at the first opening 13 of the first feeding tank 10 and is connected to the first feeding tank 10. The first screw feeder 20 is connected to a second feeder. The side of the feed trough 30 is connected. The second feed trough 30 has a second opening 32 below, the second opening 32 is connected to a pipeline 40, and a first sealing valve 41 is provided at the upper end of the pipeline. The lower end is provided with a second sealing valve 42. The pipeline 40 is connected to a second screw feeder 50. Finally, the second screw feeder 50 is connected to a furnace body 60.

Following the above, a first material 70 is poured into the first feeding tank 10, and the feeding member 12 is mechanically stirred to destroy the bridge of the first material 70, and then passes through the first screw feeder 20 Conveying the first material 70 to the second feed tank 30. A second material 80 is added to the second feed tank 30 and mixed with the first material 70 to form a mixed material 90. The mixed material 90 is passed through the first sealing valve. 41 enters the pipeline 40, and the second seal valve 42 remains closed. When the mixture 90 reaches a certain amount, the first seal valve 41 is closed, and the second seal valve 42 is opened to allow the mixture 90 to pass through the second The screw feeder 50 is conveyed to the furnace body 60 to complete the conveying line of the present invention. The first screw feeder 20 and the second screw feeder 50 have a rotation speed and a conveying amount greater than that of the feeding piece 12, so the feeding The piece 12 can control the rotation speed of the plurality of feeding pieces 12b or the screw feeding pieces 12c by the motor 11, so as to achieve the purpose of controlling the feed flow rate.

Please refer to FIG. 5, which is a schematic diagram of a feeding member according to a second embodiment of the present invention. As shown in the figure, a feeding member 12 is provided inside a first feeding tank 10 and a motor 11 drives the feeding member 12 to rotate. The feeding piece 12 includes a rod piece 12a, and a plurality of feeding pieces 12b are disposed at the ends of the rod piece 12a. The feeding piece 12b is provided at a connection between a body 10a of the first feeding slot 10 and a feeding body 10b. Office 10c. Refer also to FIG. 6, which is a schematic view of the thread of the feeding sheet of the second embodiment. As shown in the figure, a threaded feeding sheet 12 c may also be provided at the end of the rod 12 a. The relative positions and operating relationships of other components in the second embodiment of the present invention are the same as those of the first embodiment described above, and will not be repeated here.

Therefore, the present invention is truly novel, progressive, and available for industrial use. It should comply with the patent application requirements of China's patent law. No doubt, the invention patent application was filed in accordance with the law.

However, the above is only an embodiment of the present invention, and is not intended to limit the scope of implementation of the present invention. Therefore, for example, all changes and modifications of the shape, structure, characteristics, and spirit according to the scope of the patent application for the present invention are equally changed and modified. All should be included in the patent application scope of the present invention.

100‧‧‧feed tank device

10‧‧‧ the first feed tank

10a‧‧‧ Ontology

10b‧‧‧Feeding body

10c‧‧‧ Junction

11‧‧‧ Motor

12‧‧‧Feeding parts

12a‧‧‧ Rod

12b‧‧‧feeding pieces

12c‧‧‧Threaded feeding piece

13‧‧‧ the first opening

14‧‧‧ diameter reduction

20‧‧‧The first screw feeder

30‧‧‧Second feed tank

32‧‧‧ second opening

40‧‧‧pipe

41‧‧‧The first sealing valve

42‧‧‧Second Sealing Valve

50‧‧‧Second Screw Feeder

60‧‧‧furnace

70‧‧‧ the first material

80‧‧‧ second material

90‧‧‧ mixed material

D1‧‧‧ diameter

D2‧‧‧ Trail Length

D3‧‧‧ diameter

Figure 1: It is a schematic diagram of the combined structure of the present invention; Figure 2: It is a schematic diagram of the structure of the first embodiment; Figure 3: It is a schematic diagram of other shapes of the first feed tank; Figure 4: It is a chart of the first FIG. 5 is a schematic view of a feeding piece thread of an embodiment; FIG. 5 is a schematic view of a feeding piece of a second embodiment; and FIG. 6 is a schematic view of a thread of a feeding piece of the second embodiment.

Claims (7)

A structure of a feeding trough device includes: a first feeding trough having a first opening underneath; and a feeding piece comprising a plurality of feeding pieces arranged at the end of a rod piece, the feeding piece The material sheet is arranged inside the first feeding tank, wherein the feeding member is connected to a motor to drive the feeding member to rotate; a first screw feeder, one end of the first screw feeder is connected to the A first opening is connected to the first feeding trough; a second feeding trough, a side of the second feeding trough is connected to the other end of the first screw feeder, and a second opening is provided below; a tube The pipeline is connected to the second opening and connected to the second feeding tank. A first sealing valve is provided at the upper end of the pipeline, and a second sealing valve is provided at the lower end of the pipeline. Feeder, one end of the second screw feeder is connected to the pipeline, and the downstream end of the second screw feeder is connected to a furnace body; wherein the first screw feeder is connected to the second screw feeder The speed and conveyance of the machine are greater than the speed and conveyance of the feeding part driven by the motor. The structure of the feeding tank device according to claim 1, wherein the diameter of the first feeding tank is reduced from top to bottom. The structure of the feeding trough device according to claim 1, wherein the first feeding trough includes a body and a feeding body, the feeding body is disposed below the body, and the diameter of the feeding body is Zoom down from top to bottom. The structure of the feeding trough device according to claim 1, wherein the first feeding trough includes a body and a feeding body, the feeding body is disposed below the body, and the diameter of the feeding body is less than The body has a long diameter. The structure of the feeding tank device according to claim 3 or 4, wherein the feeding member is disposed inside the feeding body. The structure of the feeding tank device according to claim 3 or 4, wherein the feeding member is disposed at a connection between the feeding body and the body. The structure of the feeding trough device according to claim 1, wherein the feeding pieces can be a threaded feeding piece.